如果可以修正程序库中的缺陷，而且不必重新编译上千个程序，就可以利用这一修正功能，这将是非常令人愉快的。

It'd be nice if you could fix a bug in the library and not have to recompile a thousand programs to take advantage of that fix.

youdao

如果需要管理和操纵XML数据，XQuery就是程序库、应用程序编程或者服务栈所提供的功能规范。

Whenever XML data needs to be managed and manipulated, XQuery is a specification for functions that a library or an application programming or service stack can provide.

youdao

通过PowerPack程序库，它还提供了大量附加的功能。

A wide variety of additional functionality is available through the PowerPack library.

youdao

But long story short, if I want to use a function called sleep, -- the reason I, the programmer, knew to use that library -- -- that header at the top -- because it told me to in this little synopsis.

但长话短说，如果我想要用一个叫做sleep的功能，我作为程序员知道使用那个函数库-,上面的标题-,因为在这个小的大纲中它告诉我。

哈佛公开课 - 计算机科学课程节选